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da tou jin ying yu guang e jin ying san ling you chong de xing tai miao shu
Author(s): 
Pages: 333-336
Year: Issue:  4
Journal: Acta Entomologica Sinica

Keyword:  大头金蝇三龄幼虫形态描述后气门头咽骨肠道传染病腹面观小刺寄生物第八腹节;
Abstract: <正> 金蝇属在河北省主要发现大头金蝇Chrysomyia megacephala(Fab.)及广额金蝇Ch.phaonis(Seg.)两种。据范滋德(1965)中国常见蝇类检索表载,肥躯金蝇Ch.pinguis(Walk.)亦见于北京。大头金蝇为该省蝇类优势种之一,幼虫孳生在稀人粪中,夏秋季节虫口密度最大,为肠道传染病主要媒介之一;而广额金蝇的习性尚不太了解,在石家庄于11月中旬到12月中旬出现,季节很短,数量也少。该两种幼虫在形态上很近似,大头金蝇幼虫过去在文献上虽有所记载,但不详尽;至于广额金蝇的幼虫则尚无记载。鉴于此,本文将这两种的三龄幼虫作一形态描述,以资鉴别。
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